Laptop battery Lenovo 45Wh 3-cell lithium-ion 5B11L67323 for compatible Lenovo notebooks

Rechargeable laptop battery Lenovo 45Wh 3-cell lithium-ion 5B11L67323 is a compact replacement battery designed for compatible Lenovo notebooks. With a rated capacity of 45Wh and three lithium‑ion cells, it restores portable power to laptops whose original battery no longer holds sufficient charge. The battery is intended for models specified by Lenovo compatibility lists and provides typical runtime suitable for day‑to‑day mobile tasks, travel, and battery‑powered operation away from AC outlets.

Advantages

This replacement battery offers a balance of energy density and compact size thanks to its 45Wh, 3-cell lithium‑ion design. It is designed for straightforward installation and compatibility with supported Lenovo notebook models, allowing users to quickly restore runtime without changing other system components. The chemistry provides stable voltage output for typical laptop workloads and is suitable for repeated charge/discharge cycles when used according to manufacturer guidelines.

Suitable for

• Restoring portable runtime for compatible Lenovo laptops whose original battery capacity has degraded
• Working on the go: mobile office tasks, web browsing, email and document editing
• Travel and remote use where mains power is not available
• Replacing a defective or non‑charging battery to recover normal device operation

Key specifications

• Battery type: Lithium‑ion (Li‑ion)
• Cell count: 3 cells
• Rated energy capacity: 45 Wh
• Form factor: Notebook internal replacement battery, slim profile for compatible Lenovo models
• Typical use: Portable power for everyday mobile computing tasks

How to use

Power down the laptop and disconnect it from the AC adapter before starting the replacement. Remove the service panel or battery bay cover according to your notebook model’s maintenance instructions, then disconnect and remove the depleted battery. Install the replacement battery ensuring connectors sit flush and any retaining clips or screws are secured. Reattach the panel, reconnect the AC adapter and allow the new battery to charge fully before first prolonged use. Follow the notebook manufacturer’s safety and handling instructions when performing the replacement.

Recommendations

To maximise service life, avoid deep discharges and prolonged storage at full charge; store the battery at moderate state of charge in a cool, dry place if not used for extended periods. Use the original charger or a charger compliant with the notebook manufacturer’s specifications, and operate within the temperature ranges recommended by Lenovo for safe charging and discharging.